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Finding the Fourth Proportional to 26,839.50, 40,266.39 and 9,309.30

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Solution

The fourth proportional to 26,839.50, 40,266.39 and 9,309.30 is: 13,966.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,839.50 : 40,266.39 = 9,309.30 : x
  2. Step 2: Convert to fraction form
    26,839.50/40,266.39 = 9,309.30/x
  3. Step 3: Cross multiply
    26,839.50x = 40,266.39 × 9,309.30
  4. Step 4: Simplify right side
    26,839.50x = 374,851,904.43
  5. Step 5: Solve for x
    x = 374,851,904.43/26,839.50
  6. Step 6: Final answer
    x = 13,966.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.